analyse.c

linux下编译已经通过

}

static void x264_mb_analyse_inter_p16x8( x264_t *h, x264_mb_analysis_t *a )
{
    x264_me_t m;
    uint8_t  **p_fenc = h->mb.pic.p_fenc;
    int mvc[3][2];
    int i, j;

    /* XXX Needed for x264_mb_predict_mv */
    h->mb.i_partition = D_16x8;

    for( i = 0; i < 2; i++ )
    {
        x264_me_t *l0m = &a->l0.me16x8[i];
        const int ref8[2] = { a->l0.me8x8[2*i].i_ref, a->l0.me8x8[2*i+1].i_ref };
        const int i_ref8s = ( ref8[0] == ref8[1] ) ? 1 : 2;

        m.i_pixel = PIXEL_16x8;
        m.p_cost_mv = a->p_cost_mv;

        LOAD_FENC( &m, p_fenc, 0, 8*i );
        l0m->cost = INT_MAX;
        for( j = 0; j < i_ref8s; j++ )
        {
             const int i_ref = ref8[j];
             const int i_ref_cost = REF_COST( 0, i_ref );
             m.i_ref_cost = i_ref_cost;
             m.i_ref = i_ref;

             /* if we skipped the 16x16 predictor, we wouldn't have to copy anything... */
             *(uint64_t*)mvc[0] = *(uint64_t*)a->l0.mvc[i_ref][0];
             *(uint64_t*)mvc[1] = *(uint64_t*)a->l0.mvc[i_ref][2*i+1];
             *(uint64_t*)mvc[2] = *(uint64_t*)a->l0.mvc[i_ref][2*i+2];

             LOAD_HPELS( &m, h->mb.pic.p_fref[0][i_ref], 0, i_ref, 0, 8*i );
             x264_macroblock_cache_ref( h, 0, 2*i, 4, 2, 0, i_ref );
             x264_mb_predict_mv( h, 0, 8*i, 4, m.mvp );
             x264_me_search( h, &m, mvc, 3 );

             m.cost += i_ref_cost;

             if( m.cost < l0m->cost )
                 *l0m = m;
        }
        x264_macroblock_cache_mv( h, 0, 2*i, 4, 2, 0, l0m->mv[0], l0m->mv[1] );
        x264_macroblock_cache_ref( h, 0, 2*i, 4, 2, 0, l0m->i_ref );
    }

    a->l0.i_cost16x8 = a->l0.me16x8[0].cost + a->l0.me16x8[1].cost;
}

static void x264_mb_analyse_inter_p8x16( x264_t *h, x264_mb_analysis_t *a )
{
    x264_me_t m;
    uint8_t  **p_fenc = h->mb.pic.p_fenc;
    int mvc[3][2];
    int i, j;

    /* XXX Needed for x264_mb_predict_mv */
    h->mb.i_partition = D_8x16;

    for( i = 0; i < 2; i++ )
    {
        x264_me_t *l0m = &a->l0.me8x16[i];
        const int ref8[2] = { a->l0.me8x8[i].i_ref, a->l0.me8x8[i+2].i_ref };
        const int i_ref8s = ( ref8[0] == ref8[1] ) ? 1 : 2;

        m.i_pixel = PIXEL_8x16;
        m.p_cost_mv = a->p_cost_mv;

        LOAD_FENC( &m, p_fenc, 8*i, 0 );
        l0m->cost = INT_MAX;
        for( j = 0; j < i_ref8s; j++ )
        {
             const int i_ref = ref8[j];
             const int i_ref_cost = REF_COST( 0, i_ref );
             m.i_ref_cost = i_ref_cost;
             m.i_ref = i_ref;

             *(uint64_t*)mvc[0] = *(uint64_t*)a->l0.mvc[i_ref][0];
             *(uint64_t*)mvc[1] = *(uint64_t*)a->l0.mvc[i_ref][i+1];
             *(uint64_t*)mvc[2] = *(uint64_t*)a->l0.mvc[i_ref][i+3];

             LOAD_HPELS( &m, h->mb.pic.p_fref[0][i_ref], 0, i_ref, 8*i, 0 );
             x264_macroblock_cache_ref( h, 2*i, 0, 2, 4, 0, i_ref );
             x264_mb_predict_mv( h, 0, 4*i, 2, m.mvp );
             x264_me_search( h, &m, mvc, 3 );

             m.cost += i_ref_cost;

             if( m.cost < l0m->cost )
                 *l0m = m;
        }
        x264_macroblock_cache_mv( h, 2*i, 0, 2, 4, 0, l0m->mv[0], l0m->mv[1] );
        x264_macroblock_cache_ref( h, 2*i, 0, 2, 4, 0, l0m->i_ref );
    }

    a->l0.i_cost8x16 = a->l0.me8x16[0].cost + a->l0.me8x16[1].cost;
}

static int x264_mb_analyse_inter_p4x4_chroma( x264_t *h, x264_mb_analysis_t *a, uint8_t **p_fref, int i8x8, int pixel )
{
    DECLARE_ALIGNED( uint8_t, pix1[16*8], 8 );
    uint8_t *pix2 = pix1+8;
    const int i_stride = h->mb.pic.i_stride[1];
    const int or = 4*(i8x8&1) + 2*(i8x8&2)*i_stride;
    const int oe = 4*(i8x8&1) + 2*(i8x8&2)*FENC_STRIDE;

#define CHROMA4x4MC( width, height, me, x, y ) \
    h->mc.mc_chroma( &p_fref[4][or+x+y*i_stride], i_stride, &pix1[x+y*16], 16, (me).mv[0], (me).mv[1], width, height ); \
    h->mc.mc_chroma( &p_fref[5][or+x+y*i_stride], i_stride, &pix2[x+y*16], 16, (me).mv[0], (me).mv[1], width, height );

    if( pixel == PIXEL_4x4 )
    {
        CHROMA4x4MC( 2,2, a->l0.me4x4[i8x8][0], 0,0 );
        CHROMA4x4MC( 2,2, a->l0.me4x4[i8x8][1], 0,2 );
        CHROMA4x4MC( 2,2, a->l0.me4x4[i8x8][2], 2,0 );
        CHROMA4x4MC( 2,2, a->l0.me4x4[i8x8][3], 2,2 );
    }
    else if( pixel == PIXEL_8x4 )
    {
        CHROMA4x4MC( 4,2, a->l0.me8x4[i8x8][0], 0,0 );
        CHROMA4x4MC( 4,2, a->l0.me8x4[i8x8][1], 0,2 );
    }
    else
    {
        CHROMA4x4MC( 2,4, a->l0.me4x8[i8x8][0], 0,0 );
        CHROMA4x4MC( 2,4, a->l0.me4x8[i8x8][1], 2,0 );
    }

    return h->pixf.mbcmp[PIXEL_4x4]( &h->mb.pic.p_fenc[1][oe], FENC_STRIDE, pix1, 16 )
         + h->pixf.mbcmp[PIXEL_4x4]( &h->mb.pic.p_fenc[2][oe], FENC_STRIDE, pix2, 16 );
}

static void x264_mb_analyse_inter_p4x4( x264_t *h, x264_mb_analysis_t *a, int i8x8 )
{
    uint8_t  **p_fref = h->mb.pic.p_fref[0][a->l0.me8x8[i8x8].i_ref];
    uint8_t  **p_fenc = h->mb.pic.p_fenc;
    const int i_ref = a->l0.me8x8[i8x8].i_ref;
    int i4x4;

    /* XXX Needed for x264_mb_predict_mv */
    h->mb.i_partition = D_8x8;

    for( i4x4 = 0; i4x4 < 4; i4x4++ )
    {
        const int idx = 4*i8x8 + i4x4;
        const int x4 = block_idx_x[idx];
        const int y4 = block_idx_y[idx];
        const int i_mvc = (i4x4 == 0);

        x264_me_t *m = &a->l0.me4x4[i8x8][i4x4];

        m->i_pixel = PIXEL_4x4;
        m->p_cost_mv = a->p_cost_mv;

        LOAD_FENC( m, p_fenc, 4*x4, 4*y4 );
        LOAD_HPELS( m, p_fref, 0, i_ref, 4*x4, 4*y4 );

        x264_mb_predict_mv( h, 0, idx, 1, m->mvp );
        x264_me_search( h, m, &a->l0.me8x8[i8x8].mv, i_mvc );

        x264_macroblock_cache_mv( h, x4, y4, 1, 1, 0, m->mv[0], m->mv[1] );
    }
    a->l0.i_cost4x4[i8x8] = a->l0.me4x4[i8x8][0].cost +
                            a->l0.me4x4[i8x8][1].cost +
                            a->l0.me4x4[i8x8][2].cost +
                            a->l0.me4x4[i8x8][3].cost +
                            REF_COST( 0, i_ref ) +
                            a->i_lambda * i_sub_mb_p_cost_table[D_L0_4x4];
    if( h->mb.b_chroma_me )
        a->l0.i_cost4x4[i8x8] += x264_mb_analyse_inter_p4x4_chroma( h, a, p_fref, i8x8, PIXEL_4x4 );
}

static void x264_mb_analyse_inter_p8x4( x264_t *h, x264_mb_analysis_t *a, int i8x8 )
{
    uint8_t  **p_fref = h->mb.pic.p_fref[0][a->l0.me8x8[i8x8].i_ref];
    uint8_t  **p_fenc = h->mb.pic.p_fenc;
    const int i_ref = a->l0.me8x8[i8x8].i_ref;
    int i8x4;

    /* XXX Needed for x264_mb_predict_mv */
    h->mb.i_partition = D_8x8;

    for( i8x4 = 0; i8x4 < 2; i8x4++ )
    {
        const int idx = 4*i8x8 + 2*i8x4;
        const int x4 = block_idx_x[idx];
        const int y4 = block_idx_y[idx];
        const int i_mvc = (i8x4 == 0);

        x264_me_t *m = &a->l0.me8x4[i8x8][i8x4];

        m->i_pixel = PIXEL_8x4;
        m->p_cost_mv = a->p_cost_mv;

        LOAD_FENC( m, p_fenc, 4*x4, 4*y4 );
        LOAD_HPELS( m, p_fref, 0, i_ref, 4*x4, 4*y4 );

        x264_mb_predict_mv( h, 0, idx, 2, m->mvp );
        x264_me_search( h, m, &a->l0.me4x4[i8x8][0].mv, i_mvc );

        x264_macroblock_cache_mv( h, x4, y4, 2, 1, 0, m->mv[0], m->mv[1] );
    }
    a->l0.i_cost8x4[i8x8] = a->l0.me8x4[i8x8][0].cost + a->l0.me8x4[i8x8][1].cost +
                            REF_COST( 0, i_ref ) +
                            a->i_lambda * i_sub_mb_p_cost_table[D_L0_8x4];
    if( h->mb.b_chroma_me )
        a->l0.i_cost8x4[i8x8] += x264_mb_analyse_inter_p4x4_chroma( h, a, p_fref, i8x8, PIXEL_8x4 );
}

static void x264_mb_analyse_inter_p4x8( x264_t *h, x264_mb_analysis_t *a, int i8x8 )
{
    uint8_t  **p_fref = h->mb.pic.p_fref[0][a->l0.me8x8[i8x8].i_ref];
    uint8_t  **p_fenc = h->mb.pic.p_fenc;
    const int i_ref = a->l0.me8x8[i8x8].i_ref;
    int i4x8;

    /* XXX Needed for x264_mb_predict_mv */
    h->mb.i_partition = D_8x8;

    for( i4x8 = 0; i4x8 < 2; i4x8++ )
    {
        const int idx = 4*i8x8 + i4x8;
        const int x4 = block_idx_x[idx];
        const int y4 = block_idx_y[idx];
        const int i_mvc = (i4x8 == 0);

        x264_me_t *m = &a->l0.me4x8[i8x8][i4x8];

        m->i_pixel = PIXEL_4x8;
        m->p_cost_mv = a->p_cost_mv;

        LOAD_FENC( m, p_fenc, 4*x4, 4*y4 );
        LOAD_HPELS( m, p_fref, 0, i_ref, 4*x4, 4*y4 );

        x264_mb_predict_mv( h, 0, idx, 1, m->mvp );
        x264_me_search( h, m, &a->l0.me4x4[i8x8][0].mv, i_mvc );

        x264_macroblock_cache_mv( h, x4, y4, 1, 2, 0, m->mv[0], m->mv[1] );
    }
    a->l0.i_cost4x8[i8x8] = a->l0.me4x8[i8x8][0].cost + a->l0.me4x8[i8x8][1].cost +
                            REF_COST( 0, i_ref ) +
                            a->i_lambda * i_sub_mb_p_cost_table[D_L0_4x8];
    if( h->mb.b_chroma_me )
        a->l0.i_cost4x8[i8x8] += x264_mb_analyse_inter_p4x4_chroma( h, a, p_fref, i8x8, PIXEL_4x8 );
}

static void x264_mb_analyse_inter_direct( x264_t *h, x264_mb_analysis_t *a )
{
    /* Assumes that fdec still contains the results of
     * x264_mb_predict_mv_direct16x16 and x264_mb_mc */

    uint8_t **p_fenc = h->mb.pic.p_fenc;
    uint8_t **p_fdec = h->mb.pic.p_fdec;
    int i;

    a->i_cost16x16direct = a->i_lambda * i_mb_b_cost_table[B_DIRECT];
    for( i = 0; i < 4; i++ )
    {
        const int x = (i&1)*8;
        const int y = (i>>1)*8;
        a->i_cost16x16direct +=
        a->i_cost8x8direct[i] =
            h->pixf.mbcmp[PIXEL_8x8]( &p_fenc[0][x+y*FENC_STRIDE], FENC_STRIDE, &p_fdec[0][x+y*FDEC_STRIDE], FDEC_STRIDE );

        /* mb type cost */
        a->i_cost8x8direct[i] += a->i_lambda * i_sub_mb_b_cost_table[D_DIRECT_8x8];
    }
}

#define WEIGHTED_AVG( size, pix1, stride1, src2, stride2 ) \
    { \
        if( h->param.analyse.b_weighted_bipred ) \
            h->mc.avg_weight[size]( pix1, stride1, src2, stride2, \
                    h->mb.bipred_weight[a->l0.i_ref][a->l1.i_ref] ); \
        else \
            h->mc.avg[size]( pix1, stride1, src2, stride2 ); \
    }

static void x264_mb_analyse_inter_b16x16( x264_t *h, x264_mb_analysis_t *a )
{
    uint8_t pix1[16*16], pix2[16*16];
    uint8_t *src2;
    int stride2 = 16;
    int weight;

    x264_me_t m;
    int i_ref;
    int mvc[8][2], i_mvc;
    int i_halfpel_thresh = INT_MAX;
    int *p_halfpel_thresh = h->mb.pic.i_fref[0]>1 ? &i_halfpel_thresh : NULL;

    /* 16x16 Search on all ref frame */
    m.i_pixel = PIXEL_16x16;
    m.p_cost_mv = a->p_cost_mv;
    LOAD_FENC( &m, h->mb.pic.p_fenc, 0, 0 );

    /* ME for List 0 */
    a->l0.me16x16.cost = INT_MAX;
    for( i_ref = 0; i_ref < h->mb.pic.i_fref[0]; i_ref++ )
    {
        /* search with ref */
        LOAD_HPELS( &m, h->mb.pic.p_fref[0][i_ref], 0, i_ref, 0, 0 );
        x264_mb_predict_mv_16x16( h, 0, i_ref, m.mvp );
        x264_mb_predict_mv_ref16x16( h, 0, i_ref, mvc, &i_mvc );
        x264_me_search_ref( h, &m, mvc, i_mvc, p_halfpel_thresh );

        /* add ref cost */
        m.cost += REF_COST( 0, i_ref );

        if( m.cost < a->l0.me16x16.cost )
        {
            a->l0.i_ref = i_ref;
            a->l0.me16x16 = m;
        }

        /* save mv for predicting neighbors */
        h->mb.mvr[0][i_ref][h->mb.i_mb_xy][0] = m.mv[0];
        h->mb.mvr[0][i_ref][h->mb.i_mb_xy][1] = m.mv[1];
    }
    /* subtract ref cost, so we don't have to add it for the other MB types */
    a->l0.me16x16.cost -= REF_COST( 0, a->l0.i_ref );

    /* ME for list 1 */
    i_halfpel_thresh = INT_MAX;
    p_halfpel_thresh = h->mb.pic.i_fref[1]>1 ? &i_halfpel_thresh : NULL;
    a->l1.me16x16.cost = INT_MAX;
    for( i_ref = 0; i_ref < h->mb.pic.i_fref[1]; i_ref++ )
    {
        /* search with ref */
        LOAD_HPELS( &m, h->mb.pic.p_fref[1][i_ref], 1, i_ref, 0, 0 );
        x264_mb_predict_mv_16x16( h, 1, i_ref, m.mvp );
        x264_mb_predict_mv_ref16x16( h, 1, i_ref, mvc, &i_mvc );
        x264_me_search_ref( h, &m, mvc, i_mvc, p_halfpel_thresh );

        /* add ref cost */
        m.cost += REF_COST( 1, i_ref );

        if( m.cost < a->l1.me16x16.cost )
        {
            a->l1.i_ref = i_ref;
            a->l1.me16x16 = m;
        }

        /* save mv for predicting neighbors */
        h->mb.mvr[1][i_ref][h->mb.i_mb_xy][0] = m.mv[0];
        h->mb.mvr[1][i_ref][h->mb.i_mb_xy][1] = m.mv[1];
    }
    /* subtract ref cost, so we don't have to add it for the other MB types */
    a->l1.me16x16.cost -= REF_COST( 1, a->l1.i_ref );

    /* Set global ref, needed for other modes? */
    x264_macroblock_cache_ref( h, 0, 0, 4, 4, 0, a->l0.i_ref );
    x264_macroblock_cache_ref( h, 0, 0, 4, 4, 1, a->l1.i_ref );

    /* get cost of BI mode */
    weight = h->mb.bipred_weight[a->l0.i_ref][a->l1.i_ref];
    if ( ((a->l0.me16x16.mv[0] | a->l0.me16x16.mv[1]) & 1) == 0 )
    {
        /* l0 reference is halfpel, so get_ref on it will make it faster */
        src2 = h->mc.get_ref( h->mb.pic.p_fref[0][a->l0.i_ref], h->mb.pic.i_stride[0],
                        pix2, &stride2,
                        a->l0.me16x16.mv[0], a->l0.me16x16.mv[1],
                        16, 16 );
        h->mc.mc_luma( h->mb.pic.p_fref[1][a->l1.i_ref], h->mb.pic.i_stride[0],
                        pix1, 16,
                        a->l1.me16x16.mv[0], a->l1.me16x16.mv[1],
                        16, 16 );
        weight = 64 - weight;
    } 
    else
    {
        /* if l0 was qpel, we'll use get_ref on l1 instead */
        h->mc.mc_luma( h->mb.pic.p_fref[0][a->l0.i_ref], h->mb.pic.i_stride[0],